Cleaning the Marble Tiles that you can find from places like https://www.irwintiles.ie/marble-stone-tiles is one of the best ways to ensure that they last for a long time and to also protect them from damage. When spillages and dirt are allowed to remain in the tiles for long periods of time, it can cause the tiles to become discoloured and in some cases can een scratch the surface of the tile.
One of the best ways to give your tiles a nice clean and shine is to use a product that is dedicated for use on marble or to use a pH neutral soap and some hot water. You should never use vinegar or baking soda as both of these can damage the tiles over time.
You should use a dusting mop or a soft brush to regularly sweep your floor to remove as much of the dirt on a daily basis as you can. If you decide to use a vacuum you should ensure that you use a brush attachment as a standard vacuum head can scratch the flooring.
Once you have swept your floor and given them a light mopping you should ensure that the tiles are fully dried by using a cloth. You should try not to let your tiles air dry as this can cause any soap that is left on the floor to become absorbed by the marble and this cna then cause staining and discolouration on the tiles.